3S 20A 12.6V Li-Ion Battery Charger Module BMS Protection PCB Board

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Product Specification

3S 20A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board

This 3S 20A 18650 Lithium Battery Protection Board comes with a recovery function-AUTO Recovery. It is suitable for the drills with starting current below 80A, power 135W below. It provides a continuous discharge of 20A, 100mA balanced current, for electric drill, sprayer, LED lights, or low power inverter. Reduce the load current use if the cooling method is not so good. It is best suitable for nominal voltage 3.6V 3.7V lithium battery(Including 18650,26650, lithium polymer batteries). Please check the circuit diagram shown in the image for battery connection.


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Product Details


  • Battery pack
  • Consumer electronics product 12V voltage rating
  • Power supply
  • Power bank and charger


  • Model Number: BMS Protection Board
  • Charging voltage: 12.6V – 13.0V
  • Maximum output current: 20A
  • Continuous discharge current (upper limit): 20A (if the cooling environment is not good, please reduce the load current use)
  • Continuous charge current (upper limit): 10A
  • Standard Edition: suitable for starting current below 40A, power 65W below the drill.
  • Enhanced version: for starting current below 60A, power 100W below the drill.
  • work for: 18650 Lithium Battery
  • Temperature range: -40°C ~ +85°C
  • weight: 4.3g

Mr. Ajit Vira

Hi Technology

Shop No. 1/69, 1st floor, Rajesh building, Lamington Road, Grant Road, Mumbai – 400 007.